Enantiomeric separation of prothioconazole and prothioconazole-desthio on chiral stationary phases
作者:Hui Liu、Wei Ding
DOI:10.1002/chir.23050
日期:2019.3
enantiomeric separation of prothioconazole and prothioconazole‐desthio was performed on various chiralstationaryphases (CSPs) by high‐performance liquid chromatography (HPLC). It was found that polysaccharide CSPs showed better ability than brushing CSPs in enantiomeric separation. The successful chiral separation of prothioconazole could be achieved on self‐made Chiralcel OD, commercialized Chiralcel
[EN] PROCESS FOR THE PREPARATION OF PROTHIOCONAZOLE AND INTERMEDIATES THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION DE PROTHIOCONAZOLE ET SES INTERMÉDIAIRES
申请人:ADAMA MAKHTESHIM LTD
公开号:WO2022107139A1
公开(公告)日:2022-05-27
The present invention is directed to a process for the preparation of a hydrazine derivative by reaction of the corresponding oxirane with hydrazine, that uses as only solvent toluene. The process provides excellent yields and purities and allows to proceed without purification in a one-pot scheme. Toluene additionally reduces the excess of hydrazine needed to complete the reaction, significantly reducing the waste treatment costs and even allows the hydrazine to be recycled into the reaction.
the degradation rates of 10 mg/L (Rac)-/(S)-/(R)-prothioconazole by strain AJ-1 were 76.0 %, 100.0 % and 64.8 % within 6 d, respectively. The CS bond of prothioconazole was methylated to produce (S)-/(R)-prothioconazole-S-methyl by strain AJ-1, but the degradation rate of prothioconazole by strain AJ-1 with (S)-enantiomer was 2.54-fold of that with (R)-enantiomer. Moreover, the toxicity of (Rac)-pro
丙硫菌唑是一种应用广泛的手性三唑类杀菌剂,其残留污染近年来受到广泛关注。然而,关于丙硫菌唑对映体的微生物代谢过程知之甚少。在这项研究中,丙硫菌唑降解菌株Sphingomonas sp。AJ-1,从活性污泥中分离出来。菌株AJ-1降解丙硫菌唑的最适温度和pH分别为30℃和6.0,菌株AJ-1降解丙硫菌唑的速率与初始浓度呈负相关。当添加额外的碳源时,降解率为 10 mg/L ( Rac )-/( S )-/( RAJ-1 菌株的 )-丙硫菌唑在 6 d 内分别为 76.0%、100.0% 和 64.8%。菌株AJ-1将丙硫菌唑的CS键甲基化生成( S )-/( R ) -丙硫菌唑-S-甲基,但菌株AJ-1对丙硫菌唑的降解率为2.54- ( R )-对映异构体的倍数。此外,(Rac)-丙硫菌唑-S-甲基对Pseudokirchneriella subcapitata的毒性比( Rac ) -丙硫菌唑低5
Crystalline modifications of prothioconazole
申请人:MAKHTESHIM CHEMICAL WORKS LIMITED
公开号:EP2703389A1
公开(公告)日:2014-03-05
There is disclosed a crystalline DMSO solvate of prothioconazole as well as amorphous prothioconazole. Methods for making these solid forms, microbicidal compositions comprising them and uses thereof are also disclosed.
Synergistic fungicidal mixtures and compositions comprising 5-fluoro-4-imino-3-methyl-1-tosyl-3,4-dihydropyrimidin-2(1H)-one for fungal control
申请人:Adama Makhteshim Ltd.
公开号:US10051862B2
公开(公告)日:2018-08-21
A fungicidal composition containing a fungicidally effective amount of the compound of Formula I:
5-fluoro-4-imino-3-methyl-1-tosyl-3,4-dihydropyrimidin-2(1H)-one, and at least one fungicide to provide synergistic control of selected fungi wherein the at least one fungicide is a multi-site inhibitor or a strobilurin inhibitor.